SHOW LOAD CURVE

This function enables the user to display the selected curve(s).  In addition, the user can organize the display by using the options in the dialog box as shown in Figure 13.14.11.

Figure 13.14.11  Show Curve Options dialog box

Select the load curve from the SELECT CURVE dialog box illustrated in Figure 13.14.10.

 

LOCATION (SHOW CURVE)

·         Toggle on FULL SCREEN to display the curve(s) in the display area.

·         Toggle on USER DEFINED LOCATION and drag a window to display the curve(s).

 

CLEAR

This function is used to remove an object from the display area using the following options:

·         CURVE SCREEN 

Clear all objects in the display area.

·         MODEL

Clear displayed model.

·         ETA LABEL

Clear label at the bottom left of the display screen.

·         ALL

Clear all objects in the display screen.

 

NOTE: Clicking on the CLEAR button removes all objects.

 

QUERY

This function is used to display graph information using the following options:

·         POINT 

Select a point on a curve. Its X, Y coordinates are printed in the message prompt window.

·         CURVE

A list of defined curves appears.  Select one from the list or choose from the screen.  The name of the curve, number of points on the curve, the X range, and the Y range are printed in the message prompt window.

·         GRAPH 

The name of the graph and the number of curves in the graph are printed in the message prompt window.

 

OPTION FOR GRAPH DISPLAY

This allows the user to manipulate the display of AXIS, GRAPH, CURVE, GRID and LEGEND.  See Figure 13.14.12 to Figure 13.14.16.

Figure 13.14.12  Axis Option

Figure 13.14.13  Select Curve

Figure 13.14.14  Graph Options

Figure 13.14.15  Grid Option

Figure 13.14.16  Legend Options

 

Select the button to the right of OPTION FOR to select between AXIS, CURVE, GRAPH, GRID and LEGEND.  Each option displays its own dialog box.

 

 

DEFINE RANGE OF GRAPH

This function is utilized to zoom in on a specific section of the graph. 

 

The FULL RANGE option is used to display a curve in full range (default). 

The USER DEFINED option is used to adjust values of the four sliders. Hit APPLY button to reset the range.

 

OPERATION

This function allows the user to apply mathematical operations to the displayed curve. The options are illustrated in Figure 13.14.17.

Figure 13.14.17  Curve Operation dialog box

After an operation is selected, the SELECT CURVE dialog box as illustrated in Figure 13.14.18 is displayed. The user can select a curve by choosing from those displayed in the curve window, selecting from the name list, or selecting the ALL CURVES button.  eta/DYNAFORM prints the following message in the message prompt window:

LEFT BUTTON SELECT, MIDDLE BUTTON CONFIRM, RIGHT BUTTON DESELECT

Figure 13.14.18  Select Curve dialog box

    Create a new curve in the curve screen of which the values of Y are the sums of the selected curves. Two or more curves must be selected.

    Create a new curve using the differences between two selected curves.

   Create a new curve using the product of two selected curves.

     Create a new curve using quotients of two selected curves.

   Create a new curve that is derivative of the selected curve with respect to time.

    Create a new curve that is indefinite integral of the selected curve with respect to time.

    Scale the selected curve using magnification factors in the X, Y directions.

  Move the selected curve in the X, Y directions.

   Create a new curve that is a copy of the selected curve at the same position and in different colors.

    Negate the values of the selected curve in the Y direction.

  Switch the X-axis and the Y-axis.

   Create a new curve that is the resultant of the selected curve.

   Create a new curve of which the abscissa is from the first curve and the ordinate is from the second curve.

 

NOTE:       All results under the above operations are temporarily displayed in the curve screen.  They will not be automatically saved as load curves. The user needs to save the curve.

 

ERASE

This function is used to remove the selected curve from the displayed graph.

 

KEEP IN DATABASE

This function is used to save the selected curve in the database.

 

SAVE TO FILE

This function is used to save the display graph as a text file in a directory. The SAVE CURVE window is shown in Figure 13.14.19.

Figure 13.14.19  Save Curves Window